# mongoimport > Imports content from a JSON, CSV, or TSV file into a MongoDB database. > More information: . - Import a JSON file into a specific collection: `mongoimport --file={{path/to/file.json}} --uri={{mongodb_uri}} --collection={{collection_name}}` - Import a CSV file, using the first line of the file to determine field names: `mongoimport --type={{csv}} --file={{path/to/file.csv}} --db={{database_name}} --collection={{collection_name}}` - Import a JSON array, using each element as a separate document: `mongoimport --jsonArray --file={{path/to/file.json}}` - Import a JSON file using a specific mode and a query to match existing documents: `mongoimport --file={{path/to/file.json}} --mode={{delete|merge|upsert}} --upsertFields="{{field1,field2,...}}"` - Import a CSV file, reading field names from a separate CSV file and ignoring fields with empty values: `mongoimport --type={{csv}} --file={{path/to/file.csv}} --fieldFile={{path/to/field_file.csv}} --ignoreBlanks` - Display help: `mongoimport --help`